{"instruction": "You are an expert in relationship extraction. Please extract relationship triples that match the schema definition from the input. Return an empty list for relationships that do not exist. Please respond in the format of a JSON string.", "schema": ["instrument agency", "else"], "input": "in a power system consisting of transmission lines connected together and to two or more generators , the rotors of the generators rotate at a constant speed ."}
{"instrument agency": [], "else": []}